Re: [PATCH v2 01/11] thermal: core: Add and use thermal zone guard

[Rafael J. Wysocki]

On Mon, Oct 21, 2024 at 1:41 PM Markus Elfring <Markus.Elfring@xxxxxx> wrote:
>
> …
> > +++ linux-pm/drivers/thermal/thermal_helpers.c
> > @@ -60,13 +60,13 @@ bool thermal_trip_is_bound_to_cdev(struc
> >  {
> >       bool ret;
> >
> > -     mutex_lock(&tz->lock);
> > +     guard(thermal_zone)(tz);
> > +
> >       mutex_lock(&cdev->lock);
> >
> >       ret = thermal_instance_present(tz, cdev, trip);
> >
> >       mutex_unlock(&cdev->lock);
> > -     mutex_unlock(&tz->lock);
> >
> >       return ret;
> >  }
> …
>
> Would you become interested to apply a statement
> like “guard(mutex)(&cdev->lock);”?

Well, please see
https://lore.kernel.org/linux-pm/5837621.DvuYhMxLoT@xxxxxxxxxxxxx/